CN112412672A - 一种发动机进气歧管隔音罩及其制造方法 - Google Patents

一种发动机进气歧管隔音罩及其制造方法 Download PDF

Info

Publication number
CN112412672A
CN112412672A CN202011252421.5A CN202011252421A CN112412672A CN 112412672 A CN112412672 A CN 112412672A CN 202011252421 A CN202011252421 A CN 202011252421A CN 112412672 A CN112412672 A CN 112412672A
Authority
CN
China
Prior art keywords
intake manifold
engine intake
fabric layer
shell
woven fabric
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202011252421.5A
Other languages
English (en)
Inventor
施家伟
张永强
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Xin'an Car Deadening Felt Co ltd
Original Assignee
Shanghai Xin'an Car Deadening Felt Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shanghai Xin'an Car Deadening Felt Co ltd filed Critical Shanghai Xin'an Car Deadening Felt Co ltd
Priority to CN202011252421.5A priority Critical patent/CN112412672A/zh
Publication of CN112412672A publication Critical patent/CN112412672A/zh
Pending legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/12—Intake silencers ; Sound modulation, transmission or amplification
    • F02M35/1272—Intake silencers ; Sound modulation, transmission or amplification using absorbing, damping, insulating or reflecting materials, e.g. porous foams, fibres, rubbers, fabrics, coatings or membranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
    • B29C70/34—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/14—Layered products comprising a layer of metal next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
    • B32B3/08—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B32B37/1207—Heat-activated adhesive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/022—Non-woven fabric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/104—Intake manifolds
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/12—Intake silencers ; Sound modulation, transmission or amplification
    • F02M35/1244—Intake silencers ; Sound modulation, transmission or amplification using interference; Masking or reflecting sound
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/12—Intake silencers ; Sound modulation, transmission or amplification
    • F02M35/1283—Manufacturing or assembly; Connectors; Fixations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B32B37/1207—Heat-activated adhesive
    • B32B2037/1215—Hot-melt adhesive
    • B32B2037/1223—Hot-melt adhesive film-shaped
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/101—Glass fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/10—Properties of the layers or laminate having particular acoustical properties
    • B32B2307/102—Insulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/306—Resistant to heat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/306—Resistant to heat
    • B32B2307/3065—Flame resistant or retardant, fire resistant or retardant
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/546—Flexural strength; Flexion stiffness

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Composite Materials (AREA)
  • Manufacturing & Machinery (AREA)
  • Textile Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Exhaust Silencers (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)

Abstract

本发明涉及一种发动机进气歧管隔音罩及其制造方法，进气歧管隔音罩包括壳体(1)和设置在壳体(1)上的多个装配组件(2)；所述的壳体(1)包括依次设置的表面无纺布层(11)、玻璃纤维层(12)和底面无纺布层(13)。与现有技术相比，本发明具有对进气歧管包裹性强，吸声和隔音性强，且更耐高温等优点。

Description

一种发动机进气歧管隔音罩及其制造方法
技术领域
本发明涉及隔音罩技术领域，具体涉及一种发动机进气歧管隔音罩及其制造方法。
背景技术
进气歧管为进气管与缸盖之间的连接管路，作用为将进气管的气体分配到各个气缸内，气体流经进气歧管时，由于气体流动引起进气歧管壁面震动，且气体流动的声音穿过进气歧管壁面，产生噪声。
实用新型专利CN204783374U公开了一种增压直喷发动机进气歧管的隔音结构，包括进气歧管和隔音罩，隔音罩内表面与进气歧管的外表面匹配贴合，隔音罩的上表面为平面，隔音罩的内表面设有填充进气歧管的气道与气道间空隙的凸起，该方案能够提高发动机进气歧管处的降噪效果。但是，隔音罩耐高温性不强，精密度不高，隔音效果有限。
发明专利CN110920179A公开了一种电动汽车电池隔音罩零件及其制作方法，该零件包括自上而下依次设置的无纺布层、阻燃EPDM层、PU层，以及安装在PU层上的金属卡扣，将阻燃EPDM层及PU层放入烘箱，加温使得EPDM表面软化，通过送料装置将坯料放入模具，无纺布、热烘后的EPDM、PU在模具中自上而下依次排布，然后进行热压成型，再在室温中进行冷却定型，切除余料，在得到零件上加装金属卡扣，制作得到电动汽车电池隔音罩零件，该发明具有优异的密封性、耐热性、阻燃性和保温性。但是，该隔音罩零件较厚，在进气歧管上应用受到限制，对进气歧管包裹性不强，吸声和隔音性不强，且耐高温性有限。
发明内容
本发明的目的就是为了克服上述现有技术存在的缺陷而提供一种发动机进气歧管隔音罩及其制造方法，对进气歧管包裹性强，吸声和隔音性强，且更耐高温。
本发明的目的可以通过以下技术方案来实现：一种发动机进气歧管隔音罩，包括壳体和设置在壳体上的多个装配组件；所述的壳体包括依次设置的表面无纺布层、玻璃纤维层和底面无纺布层。玻璃纤维层具有耐高温、耐油污、抗腐蚀、隔音等良好性能，成型后的玻璃纤维层，由于纤维之间的相关结合，产能不规则的形状和空隙，能有很好的吸声性能。本发明声波通过织物的无纺布后，在玻纤层反复折射，大大减小声波能量，从而吸音性能良好。
进一步地，所述的表面无纺布层上还设有铝箔，铝箔厚度为0.08～0.12mm。主要起到反射发动机的热量，从而保护进气歧管的作用。铝箔背面覆有胶膜，热压时胶膜熔化粘贴在无纺布上。
所述的玻璃纤维层为酚醛树脂型玻璃纤维层，单位面积重量为800～1200g/m2。
所述的酚醛树脂型玻璃纤维直径为5.5～7μm，长度为0.3～0.8mm，导热系数为0.033～0.04w/m.k。
所述的装配组件为斡旋垫圈，斡旋垫圈包括底座和顶盖，底座上设有圆锥部，顶盖上设有与圆锥部相配合的翻边。斡旋垫圈为304不锈钢材质，不易生锈。
进一步地，所述的斡旋垫圈设置在隔音罩的边缘部位，底座设置在壳体下方，圆锥部穿过壳体，通过翻边与位于壳体上方的顶盖相连。
所述的表面无纺布层和底面无纺布的单位面积重量为110～130g/m2，面料表面较为细腻，手感柔和，针刺起绒，该风格面料多用于中端车型，用以防止玻璃纤维外露，具有阻燃、耐化学试剂等性能。
一种上述发动机进气歧管隔音罩的制造方法，包括以下步骤：
第一步：将表面无纺布层、玻璃纤维层、底面无纺布层的坯料放在模腔内热压定型；
第二步：开模，将第一步产品放入冷却工装冷却；
第三步：将冷却后的产品取出，去除边料，得到壳体；
第四步：在第三步得到的壳体上设置多个装配组件，得到所述的发动机进气歧管隔音罩。
进一步地，第一步所述的热压定型温度为210～250℃，压机压力为17～23MPa，合模保压时间为110～130s，且模腔内设有固定铝箔的装置，方便在表面无纺布层上方粘贴铝箔，热压定型过程在电机隔音罩壳体上留有压痕，电机隔音罩主体可沿压痕弯折，方便后续装配；第二步所述的冷却工装温度为常温，冷却时间为2～3min。
第四步所述的装配组件的设置方式为：在壳体下方放置斡旋垫圈的底座，手工将底座上的圆锥部穿过壳体并沿零件孔的缺口旋转，将壳体按照热压定型产生的压痕进行预弯折，然后将顶盖与圆锥部旋紧固定。零件本体设计的孔直径，比圆锥部大1.5～2mm，安装后保持斡旋垫圈在孔位中可进行1.5～2mm左右的滑动。
与现有技术相比，本发明具有以下优点：
1.本发明通过设置玻璃纤维层，耐高温性更强，可弯折，能隔音，较薄，对发动机进气歧管的包裹性好，吸声和隔音性能更强；
2.本发明以玻璃纤维作为基材，主要成分是二氧化硅，不燃，化学性能稳定，具有优异的阻燃性能，单个式样第一次燃烧的时间小于10秒，没有熔滴；
3.本发明以玻璃纤维作为基材，化学性能稳定，能满足各种高低温环境，如：在-40℃～120℃、30个周期(15天)的温度循环实验中无变形，无结构及功能性损伤等；
4.本发明通过不锈钢的斡旋垫圈对发动机进气歧管隔音罩进行安装固定，具有防锈等性能，且型面尺寸略小于安装孔设计，安装、拆卸方便。
附图说明
图1为本发明发动机进气歧管隔音罩局部结构示意图；
图2为本发明斡旋垫圈的结构示意图；
图3为本发明进气歧管隔音罩总成结构示意图；
图4为本发明进气歧管隔音罩总成主视图；
图5为本发明进气歧管隔音罩总成俯视图；
图中：1-壳体，11-表面无纺布层，12-玻璃纤维层，13-底面无纺布层，2-装配组件，21-底座，22-顶盖，23-圆锥部，24-翻边，3-铝箔，4-进气歧管隔音罩总成。
具体实施方式
下面结合附图和具体实施例对本发明进行详细说明。以下实施例在以本发明技术方案为前提下进行实施，给出了详细的实施方式和具体的操作过程，但本发明的保护范围不限于下述的实施例。
实施例1
一种发动机进气歧管隔音罩，如图1所示，包括壳体1和设置在壳体1上的多个装配组件2，壳体1包括从外向内依次设置的表面无纺布层11、玻璃纤维层12和底面无纺布层13，且表面无纺布层11上还设有铝箔3。玻璃纤维层12的单位面积重量为800g/m2，表面无纺布层11和底面无纺布13的单位面积重量为110～130g/m2。
壳体1通过以下方法制得：
第一步：将表面无纺布层11、玻璃纤维层12、底面无纺布层13的坯料放在模腔内热压定型，热压定型温度为210～250℃，压机压力为17～23MPa，合模保压时间为110～130s；
第二步：开模，将第一步产品放入冷却工装常温冷却2～3min；
第三步：将冷却后的产品取出，去除边料，得到壳体1。
壳体1在热压定型过程中表面产生压痕，壳体1可沿压痕进行弯折装配。
铝箔3粘贴在壳体1的表面无纺布层11上。
带铝箔3的壳体1通过多个装配组件2装配到通用汽车的发动机进气歧管上，装配组件2设置在壳体1的边缘部位，如图2所示，装配组件2为斡旋垫圈，包括底座21和顶盖22，底座21上设有圆锥部23，顶盖22上设有与圆锥部23相配合的翻边24。底座21设置在壳体1下方内且圆锥部23穿过壳体1，通过翻边24与位于壳体1上方的顶盖22相连。装配时，在壳体1下方放置斡旋垫圈的底座21，手工将底座21上的圆锥部23穿过壳体1并沿零件孔的缺口旋转，将壳体1按照热压定型产生的压痕进行预弯折，然后将顶盖22与圆锥部23旋紧固定，使壳体1安装在发送机进气歧管上，所得进气歧管隔音罩总成4如图3～5所示。
实施例2
一种发动机进气歧管隔音罩，玻璃纤维层12的单位面积重量为1000g/m2，其余与实施例1相同，将所述的发动机进气歧管隔音罩装配到通用汽车的发动机进气歧管上。
实施例3
一种发动机进气歧管隔音罩，玻璃纤维层12的单位面积重量为1200g/m2，其余与实施例1相同，将所述的发动机进气歧管隔音罩装配到通用汽车的发动机进气歧管上。
对比例1
按照发明专利CN110920179A方法所制得的隔音罩，将所述的发动机进气歧管隔音罩装配到通用汽车的发动机进气歧管上。
对实施例1～3及对比例1的隔音罩进行性能测试，所得参数如下表所示：
项目 实施例1 实施例2 实施例3 对比例1
平均吸声量 0.55 0.58 0.6 0.5
最高耐温 180℃/200h 180℃/200h 180℃/200h 180℃/150h
阻燃V0 Y Y Y N
可以看出，与现有技术相比，本发明的隔音罩吸声性能更强，更耐高温，且更具阻燃性。
上述的对实施例的描述是为便于该技术领域的普通技术人员能理解和使用发明。熟悉本领域技术的人员显然可以容易地对这些实施例做出各种修改，并把在此说明的一般原理应用到其他实施例中而不必经过创造性的劳动。因此，本发明不限于上述实施例，本领域技术人员根据本发明的揭示，不脱离本发明范畴所做出的改进和修改都应该在本发明的保护范围之内。

Claims (10)

1.一种发动机进气歧管隔音罩，其特征在于，包括壳体(1)和设置在壳体(1)上的多个装配组件(2)；所述的壳体(1)包括依次设置的表面无纺布层(11)、玻璃纤维层(12)和底面无纺布层(13)。
2.根据权利要求1所述的发动机进气歧管隔音罩，其特征在于，所述的表面无纺布层(11)上还设有铝箔(3)，铝箔(3)厚度为0.08～0.12mm。
3.根据权利要求1所述的发动机进气歧管隔音罩，其特征在于，所述的玻璃纤维层(12)为酚醛树脂型玻璃纤维层，单位面积重量为800～1200g/m2。
4.根据权利要求1所述的发动机进气歧管隔音罩，其特征在于，所述的酚醛树脂型玻璃纤维直径为5.5～7μm，长度为0.3～0.8mm，导热系数为0.033～0.04w/m.k。
5.根据权利要求1所述的发动机进气歧管隔音罩，其特征在于，所述的装配组件(2)为斡旋垫圈，斡旋垫圈包括底座(21)和顶盖(22)，底座(21)上设有圆锥部(23)，顶盖(22)上设有与圆锥部(23)相配合的翻边(24)。
6.根据权利要求5所述的发动机进气歧管隔音罩，其特征在于，所述的斡旋垫圈设置在壳体(1)的边缘部位，底座(21)设置在壳体(1)下方，圆锥部(23)穿过壳体(1)，通过翻边(24)与位于壳体(1)上方的顶盖(22)相连。
7.根据权利要求1所述的发动机进气歧管隔音罩，其特征在于，所述的表面无纺布层(11)和底面无纺布(13)的单位面积重量为110～130g/m2。
8.一种如权利要求1～7任一项所述的发动机进气歧管隔音罩的制造方法，其特征在于，包括以下步骤：
第一步：将表面无纺布层(11)、玻璃纤维层(12)、底面无纺布层(13)的坯料放在模腔内热压定型；
第二步：开模，将第一步产品放入冷却工装冷却；
第三步：将冷却后的产品取出，去除边料，得到壳体(1)；
第四步：在第三步得到的壳体(1)上设置多个装配组件(2)，得到所述的发动机进气歧管隔音罩。
9.根据权利要求8所述的发动机进气歧管隔音罩的制造方法，其特征在于，第一步所述的热压定型温度为210～250℃，压机压力为17～23MPa，合模保压时间为110～130s，且模腔内设有固定铝箔的装置，在表面无纺布层(13)上粘贴铝箔(3)；
第二步所述的冷却工装温度为常温，冷却时间为2～3min。
10.根据权利要求8所述的发动机进气歧管隔音罩的制造方法，其特征在于，第四步所述的装配组件的设置方式为：在壳体(1)下方放置斡旋垫圈的底座(21)，手工将底座(21)上的圆锥部(23)穿过壳体(1)并沿零件孔的缺口旋转，将壳体(1)按照热压定型产生的压痕进行预弯折，然后将顶盖(22)与圆锥部(23)旋紧固定。
CN202011252421.5A 2020-11-11 2020-11-11 一种发动机进气歧管隔音罩及其制造方法 Pending CN112412672A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011252421.5A CN112412672A (zh) 2020-11-11 2020-11-11 一种发动机进气歧管隔音罩及其制造方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011252421.5A CN112412672A (zh) 2020-11-11 2020-11-11 一种发动机进气歧管隔音罩及其制造方法

Publications (1)

Publication Number Publication Date
CN112412672A true CN112412672A (zh) 2021-02-26

Family

ID=74781459

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011252421.5A Pending CN112412672A (zh) 2020-11-11 2020-11-11 一种发动机进气歧管隔音罩及其制造方法

Country Status (1)

Country Link
CN (1) CN112412672A (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115302892A (zh) * 2022-07-25 2022-11-08 东风商用车有限公司 一种发动机隔音罩盖及其制备方法

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6116206A (en) * 1999-05-19 2000-09-12 General Motors Corporation Intake manifold cover
US20030010566A1 (en) * 2001-07-11 2003-01-16 Tokai Rubber Industries, Ltd. Soundproof cover
US20100031912A1 (en) * 2008-08-11 2010-02-11 Rolland Francis V Engine air intake manifold having a shell
CN101648548A (zh) * 2009-09-07 2010-02-17 无锡吉兴汽车声学部件科技有限公司 低密度聚氨酯软泡顶衬的湿法生产工艺
CN201794666U (zh) * 2010-08-02 2011-04-13 王洪波 发动机罩盖隔音垫
CN201816492U (zh) * 2010-09-10 2011-05-04 王群武 汽车脚踏垫用的卡扣
CN204783374U (zh) * 2015-07-17 2015-11-18 重庆长安汽车股份有限公司 一种增压直喷发动机进气歧管的隔音结构
CN205272770U (zh) * 2015-12-28 2016-06-01 浙江乾丰汽车零部件有限公司 一种汽车引擎盖吸音隔热棉
CN206111313U (zh) * 2016-10-28 2017-04-19 江西腾勒动力有限公司 一种发动机排气歧管隔热罩结构
CN107620637A (zh) * 2017-09-25 2018-01-23 邓玉平 一种隔音和耐高温性能较好的发动机罩盖
WO2019004153A1 (ja) * 2017-06-26 2019-01-03 ニチアス株式会社 防音用被覆材およびエンジンユニット

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6116206A (en) * 1999-05-19 2000-09-12 General Motors Corporation Intake manifold cover
US20030010566A1 (en) * 2001-07-11 2003-01-16 Tokai Rubber Industries, Ltd. Soundproof cover
US20100031912A1 (en) * 2008-08-11 2010-02-11 Rolland Francis V Engine air intake manifold having a shell
CN101648548A (zh) * 2009-09-07 2010-02-17 无锡吉兴汽车声学部件科技有限公司 低密度聚氨酯软泡顶衬的湿法生产工艺
CN201794666U (zh) * 2010-08-02 2011-04-13 王洪波 发动机罩盖隔音垫
CN201816492U (zh) * 2010-09-10 2011-05-04 王群武 汽车脚踏垫用的卡扣
CN204783374U (zh) * 2015-07-17 2015-11-18 重庆长安汽车股份有限公司 一种增压直喷发动机进气歧管的隔音结构
CN205272770U (zh) * 2015-12-28 2016-06-01 浙江乾丰汽车零部件有限公司 一种汽车引擎盖吸音隔热棉
CN206111313U (zh) * 2016-10-28 2017-04-19 江西腾勒动力有限公司 一种发动机排气歧管隔热罩结构
WO2019004153A1 (ja) * 2017-06-26 2019-01-03 ニチアス株式会社 防音用被覆材およびエンジンユニット
CN107620637A (zh) * 2017-09-25 2018-01-23 邓玉平 一种隔音和耐高温性能较好的发动机罩盖

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115302892A (zh) * 2022-07-25 2022-11-08 东风商用车有限公司 一种发动机隔音罩盖及其制备方法

Similar Documents

Publication Publication Date Title
EP2669888B1 (en) Process for production of a sound-proof material
US6302466B1 (en) Vibration-damping, noise-reducing, heat-shielding vehicle trim
JP5459838B2 (ja) 防音カバー及びその製造方法
US20080096451A1 (en) Acoustic and Thermal Shielding Device
CN112412672A (zh) 一种发动机进气歧管隔音罩及其制造方法
JP2005083376A5 (zh)
CN2902692Y (zh) 复合型降噪隔热材料板
WO2019004153A1 (ja) 防音用被覆材およびエンジンユニット
CN208682697U (zh) 一种复合纤维汽车地毯
JP2009209795A (ja) 内燃機関用インシュレータ
CN115302892A (zh) 一种发动机隔音罩盖及其制备方法
CN201391364Y (zh) 一种隔热罩
CN221067959U (zh) 一种汽车前舱装饰罩
CN216306092U (zh) 一种提高降噪效果的发动机隔热罩
CN208386308U (zh) 一种具有散热功能的电机外壳
CN110605884A (zh) 一种耐高温高阻燃的商用车隔热垫及其制作方法
CN201902721U (zh) 节能消音空调风管
CN102074668B (zh) 一种蓄电池隔热罩
CN112383176A (zh) 一种电机隔音罩及其制造方法
CN212529540U (zh) 隔热罩、分动箱及车辆
CN213799506U (zh) 一种前围减振降噪装置及汽车
CN210760584U (zh) 一种隔热效果好的遮蔽板
CN212603829U (zh) 一种感光耐辐射型便于镀膜的汽车玻璃
CN220243140U (zh) 一种汽车发动机仓用隔音隔热垫
CN2926528Y (zh) 车用发动机复合减振降噪屏障板

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20210226

RJ01 Rejection of invention patent application after publication